using System;

using System.Collections.Generic;

using System.Linq;

​

namespace PetStore

{

    class Program

    {

        static void Main(string[] args)

        {

            /*Add 2 dogs, 1 cat, 1 bird, and one unknown animal to the pet shop's inventory.

             Code goes here.

            */

​

​

​

            /*Print the total number of animals in the pet shop's inventory.

              Code goes here.

            */

​

            Console.WriteLine("Total number of animals: ");

​

​

            /*Print all animal species contained within the pet shop's inventory

              Code goes here.

           */

​

            Console.WriteLine("Pet shop total inventory: ");

​

​

            /*Print all distinct(non-duplicate) species contained within the animal inventory

             Code goes here.

           */

            Console.WriteLine("The pet shop has these animals in stock: ");

​

            /*Remove all animals from the inventory

              Code goes here.

            */

​

            Console.ReadKey();

        }

    }

​

    public class AnimalInventory

    {

        /// <summary>

        /// Animal Inventory is a record of all animals in a pet shop

        /// </summary>

        private List<Animal> Inventory;

​

        /// <summary>

        /// This method is used to add an animal to the pet shop inventory.

        /// </summary>        

        public void AddAnimal()

        {

            //Write code to add an amimal to the inventory

        }

​

        /// <summary>

        /// This method is used to remove an animal from the pet shop inventory.

        /// </summary>        

        public void RemoveAnimal()

        {

            //Write code to remove an amimal from the inventory

        }

​

        /// <summary>

        /// This metod return the total number of animals in the pet shop inventory

        /// </summary>

        /// <returns></returns>

        public int GetAnimalCount()

        {

            //write code to retun the number of animal in the inventory.

            return 0;

        }

​

        public void PrintDistinctAnimalsSpecies()

        {

​

        }

    }

    public class Animal

    {

​

        public virtual void PrintSpecies()

        {

            Console.WriteLine("Unknown");

        }

​

    }

​

    class Dog : Animal

    {

        public override void PrintSpecies()

        {

            Console.WriteLine("Dog");

        }

    }

​

    class Cat : Animal

    {

        public override void PrintSpecies()

        {

            Console.WriteLine("Cat");

        }

    }

    class Bird : Animal

    {

        public override void PrintSpecies()

        {

            Console.WriteLine("Bird");

        }

    }

}

​